You are running Firefox 3.6 (and an old version of it at that) which is HORRIBLY insecure, out of date, unstable and bad for the web. You need to IMMEDIATELY update to Firefox 19 by going to www.getfirefox.com, and download and install Firefox 19. Don't worry, it will save your Firefox info if you install it over 3.6, but before doing ANYTHING you need to do that. This is critical.